-21.59% is the change from 778 to 610
Calculation steps:
[( 610 - 778 ) ÷ 778] x 100 = -21.59%
Formula
Percentage change = [(610 - 778) / 778] x 100
Subtract the new number by the original number
610 - 778 = -168
-168 ÷ 778 = -0.2159383033419023
-0.2159383033419023 x 100 = -21.59%